[VRAD] Added user-configurable scaling for light_environment samples #1116
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Description
When working with low luxel scales or large surfaces in the Source engine, lighting from the environment light (with -softsun enabled) can appear dirty due to a low number of samples. This PR addresses the issue by improving sample density.
For Users:
Although the default value is 30, you can safely increase it up to 1024 or even 16384. Increasing this value has a negligible impact on computation time (a few seconds or minutes more). For optimal results:
Use
-SunSamplesAreaLight 1024for general improvements.Use
-SunSamplesAreaLight 4096for very very large surfaces where extensive sunlight coverage occurs.For example:
(Default value: 30)
(User value: 1024)